Ok, I've been looking around for a couple of days now, and I'm not getting where all you modders are getting the extracted XML files from?

I saw a thread below with them all extracted, but it won't let me download from that link its supplied from and there doesnt appear to be any information in the Stickies on what you do. So I'm feeling abit Kerfuffled on how I edit this game, anyone point me in the write direction please? :)